- Blue Envelope
- Chapters
- Forward & A Mysterious Disappearance
- A Bold Stroke Rewarded
- The Mysterious Phi Beta Ki
- For He Is A White Man's Dog
- Cast Adrift
- The Dread White Line
- The Blue Envelope Disappears
- The Visit to the Chukches
- A Close Call
- Finding the Trail
- Without Compass or Guide
- What is That?
- Strange Discoveries
- A Lonesome Island
- Two Red Riding Hoods
- A Fortunate Discovery
- Out of the Night
- A New Peril
- Mysteries Explained